var form = "";
var submitted = false;
var error = false;
var error_message = "";
var borderColor = "#7096CD";
var borderColor2 = "#ff0000";

function check_input(field_name, field_size, message, str) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == '' || field_value.length < field_size || field_value.indexOf(str)>=0) {
      //error_message = error_message + "* " + message + "\n";
      error = true;
			form.elements[field_name].style.borderColor = borderColor2;
    }else{
			form.elements[field_name].style.borderColor = borderColor;
		}
  }
}

function check_radio(field_name, message) {
  var isChecked = false;

  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var radio = form.elements[field_name];

    for (var i=0; i<radio.length; i++) {
      if (radio[i].checked == true) {
        isChecked = true;
        break;
      }
    }

    if (isChecked == false) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_checkbox(field_name, message) {
  var isChecked = false;

  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var checkbox = form.elements[field_name];

    if (checkbox.checked == true) {
       isChecked = true;
    }

    if (isChecked == false) {
      error_message = error_message + "* " + message + "\n";
      error = true;
    }
  }
}

function check_select(field_name, field_default, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == field_default) {
      //error_message = error_message + "* " + message + "\n";
      error = true;
			form.elements[field_name].style.borderColor = borderColor2;
			form.elements[field_name].style.color = borderColor2;
    }else{
			form.elements[field_name].style.color = borderColor;
			form.elements[field_name].style.borderColor = borderColor;
		}
  }
}

function check_password(field_name_1, field_name_2, field_size, message_1, message_2) {
  if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
    var password = form.elements[field_name_1].value;
    var confirmation = form.elements[field_name_2].value;

    if (password == '' || password.length < field_size) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (password != confirmation) {
      error_message = error_message + "* " + message_2 + "\n";
      error = true;
    }
  }
}

function check_password_new(field_name_1, field_name_2, field_name_3, field_size, message_1, message_2, message_3) {
  if (form.elements[field_name_1] && (form.elements[field_name_1].type != "hidden")) {
    var password_current = form.elements[field_name_1].value;
    var password_new = form.elements[field_name_2].value;
    var password_confirmation = form.elements[field_name_3].value;

    if (password_current == '' || password_current.length < field_size) {
      error_message = error_message + "* " + message_1 + "\n";
      error = true;
    } else if (password_new == '' || password_new.length < field_size) {
      error_message = error_message + "* " + message_2 + "\n";
      error = true;
    } else if (password_new != password_confirmation) {
      error_message = error_message + "* " + message_3 + "\n";
      error = true;
    }
  }
}

function clearCheck() {
	inputArr = new Array();
	inputIndex = -1;
}
clearCheck();

function set_input(fname, cnt, err, str){
	inputIndex++;
	inputArr[inputIndex] = new Array('input', fname, cnt, err, str);
}
function set_radio(fname, err){
	inputIndex++;
	inputArr[inputIndex] = new Array('radio', fname, err);
}
function set_checkbox(fname, err){
	inputIndex++;
	inputArr[inputIndex] = new Array('checkbox', fname, err);
}
function set_select(fname, def, err){
	inputIndex++;
	inputArr[inputIndex] = new Array('select', fname, def, err);
}

function check_form(form_name) {
  if (submitted == true) {
    alert("Diese Seite wurde bereits bestätigt. Betätigen Sie bitte OK und warten bis der Prozess durchgeführt wurde.");
    return false;
  }

  error = false;
  //form = document[form_name];
  form = document.getElementById(form_name);
  //error_message = "Notwendige Angaben fehlen!\nBitte richtig ausfüllen.\n\n";
  
  for(var i=0; i<inputArr.length; i++){
  	if(inputArr[i][0] == 'input'){
		check_input(inputArr[i][1], inputArr[i][2], inputArr[i][3], inputArr[i][4]);
	}else if(inputArr[i][0] == 'select'){
		check_select(inputArr[i][1], inputArr[i][2], inputArr[i][3]);
	}else if(inputArr[i][0] == 'radio'){
		check_radio(inputArr[i][1], inputArr[i][2]);
	}else if(inputArr[i][0] == 'checkbox'){
		check_checkbox(inputArr[i][1], inputArr[i][2]);
	}
  }
  
  if (error == true) {
    error_message = error_message_input;
	alert(error_message);
    //return false;
  } else {
    submitted = true;
    //return true;
	//alert(form);
	form.submit();
  }
}

function checkFocus(obj,init){
	if(obj.value == init){
		obj.value='';
	}else if(obj.value == ''){
		obj.value=init;
	}
}